Don't worry too much about the gasket as they can be easily replaced if it is burnt out. Obviously it is something to look at, but probably the bottom of the list for a deal breaker. Other than cracks make sure it opens and closes correctly.
Shirley Fabrication Offset Awesome Pit
Backwoods G2 Party & G2 Chubby
Big Green Egg XL
Weber 18.5 Kettle
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